--- CMakeLists.txt.orig	2013-10-01 18:38:05.000000000 -0400
+++ CMakeLists.txt	2016-10-03 20:14:40.203096183 -0400
@@ -240,7 +240,7 @@
 # configure
 install(FILES slim.conf DESTINATION ${SYSCONFDIR})
 # systemd service file
-if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+if (${CMAKE_SYSTEM_NAME} MATCHES "Linux" AND USE_SYSTEMD)
 	install(FILES slim.service DESTINATION ${LIBDIR}/systemd/system)
 endif (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 # themes directory

.